Answers

2015-07-20T19:01:52+08:00
For the perimeter of the triangle, add all sidesĀ 
given that a, b, c are the sides of the triangle and p as perimeterĀ 
the equation is as follows"
p= a+b+c

therefore, given the sides and perimeter:
25= 11+9+x,
solve for x, youll get:

5cm

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